artist rendition
Artist's concept

Kepler-331 d is a terrestrial exoplanet that orbits a K-type star. Its mass is Unknown, it takes 32.1 days to complete one orbit of its star, and is 0.159 AU from its star. Its discovery was announced in 2014.

PLANET TYPE
Terrestrial
DISCOVERY DATE
2014
MASS
Unknown
PLANET RADIUS
1.64 x Earth
ORBITAL RADIUS
0.159 AU
ORBITAL PERIOD
32.1 days
ECCENTRICITY
Unknown
DETECTION METHOD
Transit